The storage enlargement card in addition to the interior drives of the collection consoles are fancy new proprietary SSD…however MS has a cope with Seagate for the enlargement playing cards so it’s the solely possibility and they’re fairly costly. 500gb is $100+, 1TB is $200+, 2TB is $400+.
Most X|S enhanced titles should be on the interior or enlargement card. There are a number of exceptions (lookup Gen9Aware titles) which are enhanced however can run of a normal exterior drive.
Customary Xbox One titles might be performed off of exterior laborious drives or SSD. You may retailer X|S enhanced titles on any laborious drive, however they will solely launch from the interior drive or enlargement card.